13246993 has 4 divisors (see below), whose sum is σ = 13285300. Its totient is φ = 13208688.

The previous prime is 13246991. The next prime is 13247023. The reversal of 13246993 is 39964231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3932289 + 9314704 = 1983^2 + 3052^2 .

It is a cyclic number.

It is not a de Polignac number, because 13246993 - 2¹ = 13246991 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13246991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18630 + ... + 19327.

It is an arithmetic number, because the mean of its divisors is an integer number (3321325).

Almost surely, 2^13246993 is an apocalyptic number.

It is an amenable number.

13246993 is a deficient number, since it is larger than the sum of its proper divisors (38307).

13246993 is an equidigital number, since it uses as much as digits as its factorization.

13246993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38306.

The product of its digits is 34992, while the sum is 37.

The square root of 13246993 is about 3639.6418779874. The cubic root of 13246993 is about 236.6132725764.

The spelling of 13246993 in words is "thirteen million, two hundred forty-six thousand, nine hundred ninety-three".